I have the first model twisted velocity and love the board. I was on a twin-tip prior to that and enjoyed it, but felt like I was "fighting the sidecut" of the board. With the Velocity, its a smooth ride, and very enjoyable. As I do a lot of water riding in the warmer months, having a board that rides on snow like my water boards is very nice. It makes the transition from one sport to the other a lot easier.
On the downside, it does not like light-cover, or rough conditions. Those are pretty painful, but they were on the old twin-tip I used as well.
For the average rider, I would recommend grabbing a twin-tip snowboard, or using an older one someone else has so you can get introduced to the sport. Then find someone who will you borrow their snowkite board so you can try it and see if you like it. It really is a matter of personal opinion on the board. If you like it, great, if you dont, find something you do and ride that... No harm no foul.